package com.nuliji.util.shiro;

import org.apache.commons.lang3.StringUtils;
import org.apache.commons.lang3.time.FastDateFormat;
import org.apache.shiro.authc.*;
import org.apache.shiro.authz.AuthorizationInfo;
import org.apache.shiro.authz.SimpleAuthorizationInfo;
import org.apache.shiro.realm.AuthorizingRealm;
import org.apache.shiro.subject.PrincipalCollection;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.ArrayList;

/**
 * Created by GaoJie on 2017/11/3.
 */
public class AdminRealm extends AuthorizingRealm {
    private static final FastDateFormat dateFormat = FastDateFormat.getInstance("yyyy-MM-dd HH:mm:ss");
    private static final Logger logger = LoggerFactory.getLogger(AdminRealm.class);

    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {
        logger.debug("{}", principalCollection.getRealmNames());
        String className = AdminRealm.class.getName();
        boolean selected = false;
        for(String realmNames: principalCollection.getRealmNames()){
            if(realmNames.contains(className)) selected = true;
            logger.debug("{}", realmNames);
            logger.debug("{}", className);
        }
        if(!selected) return null;
        ArrayList<String> roleAuthorization = new ArrayList<String>();
        SimpleAuthorizationInfo sa = new SimpleAuthorizationInfo();
        roleAuthorization.add("admin");
        sa.addRoles(roleAuthorization);
        return sa;
    }

    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException {
        UsernamePasswordToken token = (UsernamePasswordToken) authenticationToken;
        String username = token.getUsername();
        String password = new String(token.getPassword());

        if (StringUtils.isBlank(username) || StringUtils.isBlank(password)) {
            throw new UnknownAccountException("用户名或密码不能为空！");
        }
        return new SimpleAuthenticationInfo(token, password, getName());
    }
}
